We look at the division of 128021 by 27 
The aim is to understand the frequency of 27 in 128021.

Advancing to step 1:
If we divide 1 by 27, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 27

Step 2:
27 goes into 12 0 times with a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Take the next digit (8) from the dividend and append it to 12, then repeat: 128 / 27

Advancing to step 3:
When dividing 128 by 27, we get 4 with a remainder of 20.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtract 108 from 128 to get 20.
Take the next digit (0) from the dividend and append it to 20, then repeat: 200 / 27

Going ahead to step 4:
27 can be fit into 200 7 times, resulting in a remainder of 11.
Record the quotient 7 as the next digit in the result. 
Result so far: 47.0
Subtract 189 from 200 to get 11.
Grab the next digit (2) from the dividend, add it to 11, then carry on: 112 / 27

Step 5:
27 can be fit into 112 4 times, resulting in a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 474.0
Deduct 108 from 112 and we're left with 4.
Append the next digit (1) from the dividend to 4 and continue with: 41 / 27

On to step 6:
41 divided by 27 is 1 with a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 4741.0
Subtracting 27 from 41 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 7:
27 goes into 140 5 times with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 4741.5
Subtracting 135 from 140 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 8:
27 goes into 50 1 times with a remainder of 23.
The number 1 becomes the next digit in our result. 
Result so far: 4741.51
Subtract 27 from 50 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 9:
230 divided by 27 is 8 with a remainder of 14.
Write down 8 as next digit of the result. 
Result so far: 4741.518
Subtract 216 from 230 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 10:
The number 27 fits into 140 5 times, leaving a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 4741.5185
If we take 135 away from 140, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 11:
The number 27 fits into 50 1 times, leaving a remainder of 23.
Use 1 as the next digit of our solution. 
Result so far: 4741.51851
If we subtract 27 from 50, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Advancing to step 12:
230 divided by 27 is 8 with a remainder of 14.
Record the quotient 8 as the next digit in the result. 
Result so far: 4741.518518
If we subtract 216 from 230, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 13:
27 can be fit into 140 5 times, resulting in a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 4741.5185185
The remainder is 5 after subtracting 135 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 14:
The number 27 fits into 50 1 times, leaving a remainder of 23.
The next digit of our result is 1. 
Result so far: 4741.51851851
If we subtract 27 from 50, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

In conclusion, the division gives 4741.51851851 with a balance of 2.3e-08.